Garza is slated to make his season debut tonight in Pittsburgh against the Pirates.

The 29-year-old Garza combined to go 1-1 with a 1.17 ERA (2 ER/15.1 IP) in four rehabilitation starts between Double-A Tennessee and Triple-A Iowa, May 1-16, after he landed on the 15-day disabled list, March 31 (retroactive to March 22) with a left lat strain. Garza struck out 11 and walked four, and in his most recent outing, May 16 vs. Tucson with Iowa, he threw 6.0 shutout innings, allowing two hits, walking none and striking out six.

Garza last season went 5-7 with a 3.91 ERA (45 ER/103.2 IP) in 18 starts for the Cubs before his season was cut short due to a stress reaction in his right elbow suffered July 21 in St. Louis. He was placed on the 15-day disabled list, August 7 (retroactive to July 28) and was transferred to the 60-day disabled list, August 21.

In all or part of seven major league seasons, Garza is 57-61 with a 3.84 ERA (438 ER/1,027.0 IP) in 170 major league contests (167 starts) with Minnesota (2006-07), Tampa Bay (2008-10) and the Cubs (2011-12). Prior to his injury-shortened 2012 season, Garza recorded 30 starts in four-straight seasons from 2008-11, and twice reached the 200.0-inning mark, done in 2009 (203.0 IP) and 2010 (204.2 IP).

Bowden, 26, was 1-2 with a 3.78 ERA (7 ER/16.2 IP) in 14 relief appearances with the Cubs this season. He was acquired from Boston, April 21 of last season, with a player to be named (pitcher Hunter Cervenka) for outfielder Marlon Byrd and a cash consideration.